This is a very interesting concept. The margin for error at the bottom is a bit rough, there's a very small margin you can be, just too high and you hit the red walls, just a little lower and you start rolling and bounding up into the walls. Other than that the controls felt fairly responsive and intuitive (especially once I turned off inverted controls)
My main criticism is just that there's no real incentive to "Do a dice roll!" usually, and no real incentive to fly any faster than 1-2. If you roll a 1 or 2 you could in relative safety play the entire game like that. A timer for example would help to motivate people moving faster. Hitting an obstacle applying some rotation to the dice may lead to more frantic moments where the player needs to react quickly to their changed circumstances.